Stand



(NoModeL) W. H. HUBBARD & A. GOODRIOH.

STAND, RAGK, m. .No. 468,502. Patented Feb. 9, 1892.

QXMMQ/ww woe-Mow %WM J65 WW QMW UNITED STATES PATENT OFFICE.

WILLIAM H. HUBBARD AND ABRAM GOODRICH, OF AUBURN, NEIV YORK.

'STAND, RACK, 80C.

BPECIFICATION' forming part of Letters Patent No. 468,502, datedFebruary 9, 1892. Application filed June 23, 1891. Serial No. 397,185.(No model.)

' To all whom it may concern.-

Be it known that we, \VILLIAM H. HUBBARD and ABRAM GooDRICH, citizens ofthe United States, residing at Auburn, in the county of Cayuga and Stateof New York, have invented certain new and useful Improvements inStands, Racks, &c. and we do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art'to which it appertains to make and use thesame.

Our invention is an improvement in revolving stands, &c.; and itconsists in the novel features of construction hereinafter fullydescribed. I g

In the accompanying drawings we have illustrated one form in which wehave contemplated embodying our invention, and the same is fullydisclosed in the'following description and claims.

Referring to said drawings,Figure 1 is a side elevation ofourimproved'revolubl'e base. Fig. 2 is a sectional view of the same.Fig. 3 is a top view of the lower member of the revolving base, theupper member being removed. Fig. 4 is adetail ot'part of the mechanism.

In the drawings we have shown our improved base applied to a revolvingstand for books or other articles; but it will be obvious that the saidbase may be employed to support chairs, stools, tables, racks, and otherdevices wherever a revoluble support is desired.

In the drawings, A represents the revoluble pedestal of our improvedrevoluble base, which is preferably formed of cast metal, as iron. Thepedestal is conveniently made pyramidal in shape, and is provided at"its upper end with flanges a, which are perforated to enable the stand,rack, or other device to be supported, to be secured thereto, as shownin Figs. 5 and G. The pedestal may also be cast with a hollow portion a,if desired, to render it lighter. The lower end of the pedestal A isprovided with a pivotal support 03, suitably secured to the same, (hereshown as a short shaft set into arecess in the pedestal,) saidsupportbeing of very hard metal, as steel, and having its lower endprovided with a cone-shaped bearing portion. The pedestal A is alsoprovided adjacent to the flanges a with a turned cylindrical portion A,which terminates at its lower edge in a projecting peripheral flange afor a purpose hereinafter described.

' The pedestal A is supported in a casing B, which is hollow and of thesame general form as the pedestal. The lower extremity of the casing Bis fitted with a bearing-block b, which consists, preferably, of a screwthreaded plug tapped into the end of said casing and having acone-shaped concave bearing portion to engage the spindle or shaft a Wemight, however, provide the bearing-block b with a convexbearing-surface and the support a with a concave bearing-surface iffound desirable; but the construction here shownis the more desirable,as the concave bearing retain a quantity of oil to keep the partsproperly lubricated. The bearing-block Z) is also provided with apolygonal head I) or a poly onal aperture to receive a wrench or key, bymeans of which said block may be turned and the parts adjusted tocompensate for wear.

From the casing B extend outwardly the radial arms B, preferably four innumber, which are provided 011 their lower faces with the webs orflanges biwhich form guides to receive the supports or legs B B of thedevice, and the arms B are also provided with suitable perforations b toreceive the attaching-bolts, which secures such supports or legs to thebase. On the upper side of each of the arms B B is a pair of parallelguiding webs or flanges c c, which guide radiallymovable yokes O,carrying friction-rolls 0'. At the outer extremities of theguiding-flanges o c is an upwardly-extending lug 0 which is providedwith ascrew-threaded aperture. An adj ustin g-screw 0 extends throughsaid screwthreaded aperture and engages the yoke 0. Below the yoke C thearm B is slotted at b, and receives a set screw 19 which extends upthrough said arm and engages the yoke, supporting it and also clampingor securing it in its adjusted position after it has been adjusted bythe screw 0 WVe prefer to make the parts as shown in Figs. 2 and 4, theset-screw b forming the spindle of the friction-roll and having itsupportion of the block b serves as an oil-cup to per end screw-threadedto engage a screwthreaded aperture in the upper member of the yoke C.

When the parts are in position, the yokes O are forced inwardly by theadj usting-screws 0 until the friction-rolls c engage the turnedcylindrical portion A of the pedestal. After the parts are in theiradjusted positions the set-screws are tightened up and the yokes heldfirmly against movement. The yokesO are also provided with a projectingshoulder 0 as shown in Figs. 2 and 3, which when the rolls 0 are inengagement with the cylindrical portion A project above the peripheralflange a of the pedestal, thus preventing the pedestal and the devicewhich it supports from being removed from engagement with the casing.

It will be seen that the stand, chair, table, or other device supportedbyour improved base may be revolved with great ease, as the conebearingat the lower part of the basewill give rise to very little friction, andthe cylindrical portionof the pedestal and the rolls 0' form ananti-friction or roller-bearing, thus reducing the friction to aminimum. As the two bearings are in .dilferent planes, the devicesupported by the base will be held in a perfectly vertical position andwithout upsetting. The construction is compact, light, .very durable,and the parts are adjustable to compensate for wear, so that if theyshould become loose theymay be accurately adjusted. The parts are alsoheld securely in their adj usted positions, and willtherefore not workloose or become accidentally displaced. It will also be seen that thedevice occupies very little vertical space, and it can also be locatedentirely beneath the article which it supports, thus allowing the entirespace within therack, stand, or casing to be utilized.

What we claim as new, and desire to secure by Letters Patent of theUnited States,is-

1. Apivotal support for revolving stands, located entirely benea'ththehorizontal plane of thes'tand, the same consisting of the part adaptedto be secured to the stand provided witha vertical pivot and having acylindrical portion in a different horizontal plane from the pivot, andthe supporting part provided with a bearing to receive the said verticalpivot and having laterally-adjustable friction-rolls for engaging thesaid cylindrical portion, substantially as described.

2. Apivotal support for revolving stands, consisting of the pedestalprovided with a vertical pivot and a cylindrical portion in a differenthorizontal plane from said pivot, and a supporting part having a bearingfor said pivot and provided with radially-extending arms adapted toreceive legs or other supports, yokes removably secured to said arms andprovided with friction-rolls for engaging the cylindrical portion of thepedestal,

means for adjusting said yokes toward and from said pedestal, and meansfor clamping said yokes rigidly in their adjusted positions, therebypreventing strain upon their adj usting devices, substantially asdescribed.

3. A pivotal support for revolving stands, consisting of the pedestalprovided with a vertical pivot, and a cylindrical portion in a differenthorizontal plane from the pivot, and a supporting part having a bearingfor said pivot andhaving radially-extending slotted arms, yokes movablysecured to said arms and carrying friction-rolls adapted to engage thecylindrical portion of the pedestal, means for adjusting said yokes andtheir rolls with respect to said arms, and screws extending through theslots of said arms and engaging said yokes, whereby said screws may betightened to secure said yokes and rolls rigidly in their adjustedpositions, substantially as described.

1 4. In a pivotal support for revolving stands, the combination, withthe supportingpart, of the pedestal revolubly supported thereby, saidsupporting part being provided with a series of slotted arms, slidingyokes carrying friction-rolls secured to said arms by bolts passingthrough said slots and forming the spindles of said rolls, and means foradjusting said yokes, substantially as described. 1

5. In a pivotal support for revolving stands, the combination, with thepedestal having thecylindrical portion and the peripheral shoulder, ofthe. supporting part adapted to pivotally support said pedestal,providedwith the sliding yokes carrying friction-rolls adapted to engagethe said cylindrical portion of the pedestal, said yokes having portionsadapted to engage said peripheral flange and prevent the removal ofthepedestal from engagement with said supporting part, substantially asdescribed.

6. In a show-stand, the combination, with thesupporting part havinglaterally-extending. arms and thelegs or supports connected to saidarms, said supporting part being provided with a pedestalbearing belowsaid arms, of a pede'staladapted to be secured to the base of a stand orother structure to be supported and having a downwardlysextending pivotto engage the said bearing, and friction-rolls adj u'stably mounted onthe arms of the supporting part, whereby a pivotal support forshow-stands and like articles is provided which is situated below thestand, substantially as described.

In testimony whereofwe affix ou rsignatu res in presence of twowitnesses.

WILLIAM H. HUBBARD. ABRAM GOODRIOII.

Witnesses:

CHAS. 0. SMITH, C. F. W. HUBBARD.

IIS

